Improvement in lamps



' 2 Sheet s Sh eet I A. M. BLAKE.

Lamp.

Patente d Feb. 2,1875.

WITNESSES W 6 JNV%?R W% ATTORNEYS THE GRAPHIC CUlPNOTO- -ITBLQSfil PARKPLACZALY 4 2She ts--Shee t2. A M B L A K E Lamp. j N0.59'33'1 I Patented Feb.2,l875.

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ATTORNEYS THE GRLFFIIC CC. FHOYD-LWH 35 8 4| PARK FLA CE.N.Y.

ATENT ()rrroa.

ANDREW M. BLAKE, OF CANTON, OHIO.

IMPROVEMENT lN-LAMPS.

Specification forming part of Letters Patent No. 159,381 dated February2, 1875; application filed January 15, 1875.

To all whom it may concern Be it known that I, ANDREW M. BLAKE, ofCanton, in the county of Stark and in the State of Ohio, have inventedcertain new and useful Improvements in Lamps; and do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings and to the letters of referencemarked thereon, making a part of this specification. r

The nature of my invention consists in the construction and arrangementof a lamp havin g its oil reservoir hinged to the stand or foot, and theinlet for the oil situated at the side of the reservoir, and providedwith one or more wick-chambers, connected, by tubes, with the reservoirat or near the bottom thereof. It also consists in an adjustablewick-chamber, to be moved up or down, according to the gravity of theoil used, all as hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure 1 is a side elevation of a lamp having one wick-chamber andembodying my invention. Fig. 2 is a similar view of a lamp having twowick-chambers, showing it in position for filling. Fig. 3 is a sideview, part in section, of the adjustable wick-chamber.

A represents any ordinary stand or foot for a lamp, and B is theoil-reservoir resting on top thereof. The oil-reservoir Bis providedwith the inlet a for the oil on the side, said inlet being provided witha cap, I). The reservoir is hinged at one side to the top of the standA, in such a manner that when the reservoir is turned over, as shown inFig. 2, the air-inlet a will be on top and the reservoir be filled inthe ordinary manner. When the reservoir is turned back to rest on thetop of the stand it is held by means of a spring-catch, d, or othersuitable device. From at or near the bottom of the reservoir project oneor more tubes, 0, at the outer end of each of which is attachedawick-chamber, D, provided with any ordinary burner. In the top of thechamber D is an aperture, i, for the admission of air into the chamber.

The operation of this lamp is as follows: The reservoir B being turnedover on the side and filled with oil, the inlet a is closed by the capor plug b. When, now, the reservoir is turned back, the oil will at onceflow through the pipe 0 into the wick-chamber D; but, as a vacuum isformed in the top of .the oil-reservoir, the oil is held in suspensionin the chamber below its level in the reservoir, and sufficiently highto close the end of the pipe C. Now, when the oil in the chamber D fallsby being burned, as soon as the least portion of the end of the tube 0is uncovered, air from the chamber will pass into the reservoir andcreate enough pressure to feed oil into the chamber again sufficient toclose the end of the pipe and exclude air. In this manner the oil is fedinto the wickchamber only as needed, and the reservoir or tankcontaining the oil may be elevated any desired distance above theburner. When more than one wick-chamber is used the burners of thechamber or chambers, which are down when the reservoir is turned over tobe filled, must be removed, and such chambers closed by means of ascrew-plug, E, while the reservoir is being filled.

In Fig. 3 I have shown the wick-chamber D formed with three apertures, hk W, two of which are always closed by means of plugs or caps, and thethird screwed on the end of the pipe (J. These apertures are atdifferent heights on the chamber, and are to be used according to thegravity of oil burned. The bottom aperture, h is to be screwed on theend of the pipe 0 when the lighter hydrocarbon oils are used, the middleaperture, k when the heavier hydrocarbon oils are used, and the topaperture, 71. when animal. oils are burned. This latter'is especially tobe used on steamboats, railroad-cars, and similar places where suchheavy oils are burned.

Alamp constructed upon this plan will give a steady and uniform lighttill almost every drop of oil is gone, and there is no danger ofexplosion from any cause.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. A lamp-reservoir closed at its top, having a wick-chamber connectedto but removed therefrom, and having a side opening for fill 4. Thecombination of the standard A, the reservoir B, hinged to the standard,and. having an opening, a, in its side, one or more pipes, O, and one ormore wick-chambers, D, all substantially as and for the purposes hereinset forth.

In testimony that I claim the foregoing I have hereunto set my hand this15th day of January, 1875.

ANDREW M. BLAKE. Witnesses:

J. M. MASON, WM. H. MINNIX.

